Payment of charges on NO2 compliant vehicles

Questions to the Mayor of London – answered on 21st October 2019.

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Photo of Keith Prince Keith Prince Conservative

What are the benefits to TfL of taking payment of charges on vehicles that meet the compliance criteria for NO2?

Photo of Sadiq Khan Sadiq Khan Mayor of London

Transport for London (TfL) takes considerable care to avoid charging a compliant vehicle, and uses the best information available to avoid unnecessary charges. Vehicles that meet the required Ultra Low Emission Zone (ULEZ) emissions standards do not need to pay any charges. Where the emissions standard is uncertain or the emissions data does not exist in the vehicle registration document, TfL requires proof of emissions levels. It is the vehicle owner’s legal responsibility to prove their individual vehicle is compliant before entering the ULEZ, or be liable for the charge. Anyone who believes their vehicle is compliant should provide the relevant information to TfL via the ULEZ website ( TfL will then consider all the circumstances on a case by case basis.

Where there is uncertainty, vehicle owners are able to provide evidence of individual vehicle compliance by obtaining a Certificate of Conformity from the vehicle manufacturer or by testing their vehicle at an accredited test centre.